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// Copyright 2025 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "Common/FilesystemWatcher.h"
#include <wtr/watcher.hpp>
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
namespace Common
{
FilesystemWatcher::FilesystemWatcher() = default;
FilesystemWatcher::~FilesystemWatcher() = default;
void FilesystemWatcher::Watch(const std::string& path)
{
const auto [iter, inserted] = m_watched_paths.try_emplace(path, nullptr);
if (inserted)
{
iter->second = std::make_unique<wtr::watch>(path, [this](wtr::event e) {
const auto watched_path = PathToString(e.path_name);
if (e.path_type == wtr::event::path_type::watcher)
{
if (watched_path.starts_with('e'))
ERROR_LOG_FMT(COMMON, "Filesystem watcher: '{}'", watched_path);
else if (watched_path.starts_with('w'))
WARN_LOG_FMT(COMMON, "Filesystem watcher: '{}'", watched_path);
return;
}
if (e.effect_type == wtr::event::effect_type::create)
{
const auto unified_path = WithUnifiedPathSeparators(watched_path);
PathAdded(unified_path);
}
else if (e.effect_type == wtr::event::effect_type::modify)
{
const auto unified_path = WithUnifiedPathSeparators(watched_path);
PathModified(unified_path);
}
else if (e.effect_type == wtr::event::effect_type::rename)
{
if (!e.associated)
{
WARN_LOG_FMT(COMMON, "Rename on path '{}' seen without association!", watched_path);
return;
}
const auto old_path = WithUnifiedPathSeparators(watched_path);
const auto new_path = WithUnifiedPathSeparators(PathToString(e.associated->path_name));
PathRenamed(old_path, new_path);
}
else if (e.effect_type == wtr::event::effect_type::destroy)
{
const auto unified_path = WithUnifiedPathSeparators(watched_path);
PathDeleted(unified_path);
}
});
}
}
void FilesystemWatcher::Unwatch(const std::string& path)
{
m_watched_paths.erase(path);
}
} // namespace Common
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